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公开(公告)号：US1800880A
公开(公告)日：1931-04-14
申请号：US35461929
申请日：1929-04-12
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N
IPC: B65G15/54
CPC classification number: B65G15/54 , B65G2201/06
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公开(公告)号：US1766736A
公开(公告)日：1930-06-24
申请号：US26796928
申请日：1928-04-06
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N
CPC classification number: B65G15/48 , B65G15/54 , B65G2201/06
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公开(公告)号：US1908790A
公开(公告)日：1933-05-16
申请号：US41918530
申请日：1930-01-07
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： PETER ROBERTSON , WOODMAN FRANCIS N
IPC: F24D19/00
CPC classification number: F24D19/0082
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公开(公告)号：US1850859A
公开(公告)日：1932-03-22
申请号：US32560128
申请日：1928-12-12
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N
IPC: B65G15/54
CPC classification number: B65G15/54 , B65G2201/06
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Patent Agency Ranking
公开(公告)号：US1962225A
公开(公告)日：1934-06-12
申请号：US55050831
申请日：1931-07-13
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N , NELSON GEORGE W , HERBERT SMITH
IPC: F24D19/06
CPC classification number: F24D19/06
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公开(公告)号：US1817117A
公开(公告)日：1931-08-04
申请号：US32819728
申请日：1928-12-24
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N
CPC classification number: B65G15/48 , B65G15/54 , B65G2201/04
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公开(公告)号：US1828304A
公开(公告)日：1931-10-20
申请号：US43439230
申请日：1930-03-08
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N
IPC: B65G15/54
CPC classification number: B65G15/54 , B65G2201/04 , Y10T24/1318 , Y10T24/1494 , Y10T24/1668
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公开(公告)号：US1766737A
公开(公告)日：1930-06-24
申请号：US29580828
申请日：1928-07-27
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N
CPC classification number: B65G15/54 , B65G15/48 , B65G2201/04
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公开(公告)号：US1749932A
公开(公告)日：1930-03-11
申请号：US29580928
申请日：1928-07-27
Applicant: WICKWIRE SPENCER STEEL COMPANY
Inventor： WOODMAN FRANCIS N
IPC: B65G15/54
CPC classification number: B65G15/54 , B65G2201/06
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